Osprey (VL-EPU-3311) Hardware Reference Manual

Osprey (VL-EPU-3311) Hardware Reference Manual
Hardware
Reference
Manual
REV. July 2017
Osprey
(VL-EPU-3311)
Intel® Atom™ E38xx-based
Embedded Processing Unit with
SATA, Ethernet, USB, Serial,
Video, Mini PCIe Sockets, and
microSD.
WWW.VERSALOGIC.COM
12100 SW Tualatin Road
Tualatin, OR 97062-7341
(503) 747-2261
Fax (971) 224-4708
Copyright © 2016-2017 VersaLogic Corp. All rights reserved.
Notice:
Although every effort has been made to ensure this document is error-free, VersaLogic makes no
representations or warranties with respect to this product and specifically disclaims any implied warranties
of merchantability or fitness for any particular purpose.
VersaLogic reserves the right to revise this product and associated documentation at any time without
obligation to notify anyone of such changes.
† Other names and brands may be claimed as the property of others.
VL-EPU-3311 Reference Manual
ii
Product Revision Notes
Revision 1.03
Updated Web links
Revision 1.02
Updated Figure 4
Revision 1.01
Added Mini DisplayPort cable options
Revision 1.00
First release
Support Page
The Osprey Support Page contains additional information and resources for this product
including:



Operating system information and software drivers
Data sheets and manufacturers’ links for chips used in this product
BIOS information and upgrades
VersaTech KnowledgeBase
The VersaTech KnowledgeBase contains useful technical information about VersaLogic
products, along with product advisories.
Customer Support
If you are unable to solve a problem after reading this manual, visiting the product support page,
or searching the KnowledgeBase, contact VersaLogic Technical Support at (503) 747-2261.
VersaLogic support engineers are also available via e-mail at Support@VersaLogic.com.
Repair Service
If your product requires service, you must obtain a Returned Material Authorization (RMA)
number by calling 503-747-2261. Be ready to provide the following information:

Your name, the name of your company, your phone number, and e-mail address

The name of a technician or engineer that can be contacted if any questions arise

The quantity of items being returned

The model and serial number (barcode) of each item

A detailed description of the problem

Steps you have taken to resolve or recreate the problem

The return shipping address
Warranty Repair
All parts and labor charges are covered, including return shipping
charges for UPS Ground delivery to United States addresses.
Non-warranty Repair
All approved non-warranty repairs are subject to diagnosis and labor
charges, parts charges and return shipping fees. Specify the shipping
method you prefer and provide a purchase order number for invoicing
the repair.
VL-EPU-3311 Reference Manual
iii

Note:
Mark the RMA number clearly on the outside of the box before returning.
Cautions
Electrostatic Discharge
CAUTION:
Electrostatic discharge (ESD) can damage circuit boards, disk drives, and other
components. The circuit board must only be handled at an ESD workstation. If an
approved station is not available, some measure of protection can be provided by
wearing a grounded antistatic wrist strap. Keep all plastic away from the board, and do
not slide the board over any surface.
After removing the board from its protective wrapper, place the board on a grounded,
static-free surface, component side up. Use an antistatic foam pad if available.
The board should also be protected inside a closed metallic antistatic envelope during
shipment or storage.

Note:
The exterior coating on some metallic antistatic bags is sufficiently conductive to cause
excessive battery drain if the bag comes in contact with the bottom side of the Osprey.
Handling Care
CAUTION:
Avoid touching the exposed circuitry with your fingers when handling the board. Though
it will not damage the circuitry, it is possible that small amounts of oil or perspiration on
the skin could have enough conductivity to cause the contents of CMOS RAM to
become corrupted through careless handling, resulting in CMOS resetting to factory
defaults.
Earth Ground Requirement
CAUTION:
All mounting standoffs should be connected to earth ground (chassis ground). This
provides proper grounding for EMI purposes.
VL-EPU-3311 Reference Manual
iv
KNOWN ISSUES
Hardware

A microSD card cannot be removed or inserted if certain cables are attached to the micro
USB 3.0 connector. Many USB 3.0 cables have a housing that is thick enough to obstruct
access to the microSD socket. Some cables may not produce this limitation.

The micro USB 3.0 connector can be damaged (that is, detached from the board) if an
inserted USB cable is removed by pulling up and away from the board. To reduce the risk of
damaging the connector (and the board), pull the cable straight out of the connector; also, do
not rock or wiggle the cable back and forth to loosen it from the connector.
Operating Systems

In Linux, a dual-display configuration (using both the LVDS and the Mini DisplayPort++
connectors) will fail to show output on the LVDS port unless the operating system is
configured to boot in UEFI mode. Single display configurations do not have an issue.

In Ubuntu 14.04, if an LVDS monitor goes into power saving mode or the operating system
goes into suspend or hibernate mode, the LVDS monitor will fail to come back on.
BIOS

An installed microSD card disappears from Windows Device Manager after the board enters
an S3 state. Extracting/re-inserting the microSD card does not bring it back; the board must
be rebooted for Windows to recognize the microSD card again.

In the USB Configuration menu, disabling the xHCI controller without enabling the EHCI
controller prevents the use of all USB devices, including the keyboard. Without a keyboard
to navigate BIOS Setup utility, the board may need to be returned to VersaLogic for repair.
VL-EPU-3311 Reference Manual
v
Contents
Cautions ............................................................................................................................. iv
Electrostatic Discharge ......................................................................................... iv
Handling Care ....................................................................................................... iv
Earth Ground Requirement ................................................................................... iv
Introduction .................................................................................................................10
Features ............................................................................................................................. 11
Technical Specifications ................................................................................................... 11
Block Diagram .................................................................................................................. 12
Dimensions and Mounting ................................................................................................ 13
Osprey Dimensions .............................................................................................. 13
VL-HDW-405 Mounting Plate Dimensions ........................................................ 14
Configuration and Setup.............................................................................................15
Initial Configuration ......................................................................................................... 15
Basic Setup ....................................................................................................................... 15
BIOS Setup Utility ............................................................................................................ 17
Default BIOS Setup Values ................................................................................. 17
Operating System Installation........................................................................................... 17
Jumper Blocks .................................................................................................................. 18
Jumper As-Shipped Configuration ...................................................................... 18
Jumper Configuration Summary.......................................................................... 18
Board Features ............................................................................................................19
CPU................................................................................................................................... 19
CPU Die Temperature ......................................................................................... 19
System RAM..................................................................................................................... 19
Flash Storage .................................................................................................................... 19
I/O Interfaces .................................................................................................................... 20
Real-Time Clock (RTC) ................................................................................................... 20
Watchdog Timer ............................................................................................................... 20
External Connectors ......................................................................................................... 21
Baseboard Connector Locations .......................................................................... 21
Power Delivery ................................................................................................................. 22
Main Power Connector ........................................................................................ 22
Cabling................................................................................................................. 23
Power Requirements ............................................................................................ 23
Power Delivery Considerations ........................................................................... 23
Power Button ....................................................................................................... 24
Supported Power States ....................................................................................... 24
Battery Power Options......................................................................................... 25
External Speaker ............................................................................................................... 26
Push-button Reset ............................................................................................................. 26
LEDs ................................................................................................................................. 27
Power-Good/Fault Indicator LEDs ...................................................................... 28
Mass Storage Interfaces .............................................................................................29
SATA Interface ................................................................................................................. 29
microSD Socket ................................................................................................................ 30
eMMC Flash ..................................................................................................................... 30
Multi-purpose I/O .........................................................................................................31
USB Interface ................................................................................................................... 31
Mini PCIe / mSATA Sockets............................................................................................ 32
W_Disable# Signal .............................................................................................. 34
Mini PCIe Card Wireless Status LEDs................................................................ 35
mSATA Activity LED ......................................................................................... 36
User I/O Connector ........................................................................................................... 37
Cabling................................................................................................................. 38
Serial I/O ......................................................................................................................39
Serial Ports ........................................................................................................................ 39
Serial Port Connector Pinout ............................................................................... 40
Cabling................................................................................................................. 40
COM Port Configuration ..................................................................................... 40
Console Redirection ......................................................................................................... 40
Video Interfaces...........................................................................................................41
Mini DisplayPort++ Connector ........................................................................................ 41
VGA Output......................................................................................................... 43
Mini DisplayPort Cable Options ......................................................................... 43
LVDS Interface ................................................................................................................. 44
LVDS Flat Panel Display Connector................................................................... 44
LVDS Backlight Connector ................................................................................. 46
Network Interfaces ......................................................................................................47
Ethernet Connector .............................................................................................. 47
Cabling................................................................................................................. 48
Ethernet Status LEDs........................................................................................... 49
VL-CBR-4005B Paddleboard .......................................................................................50
VL-CBR-4005B Connectors and Indicators ........................................................ 50
User I/O Connector .............................................................................................. 51
Cabling................................................................................................................. 52
On-board Battery ................................................................................................. 52
Auxiliary I/O Connector ...................................................................................... 53
Dimensions and Mounting Holes ........................................................................ 54
Thermal Considerations .............................................................................................55
Selecting the Correct Thermal Solution for Your Application ........................................ 55
Heat Plate ............................................................................................................. 55
System-level Considerations ............................................................................... 55
CPU Thermal Trip Points .................................................................................... 56
Thermal Specifications, Restrictions, and Conditions ........................................ 58
Overall Restrictions and Conditions:................................................................... 58
Heat Plate Only Restrictions and Conditions: ..................................................... 58
Heat Sink Only Considerations: .......................................................................... 58
VL-EPU-3311 Reference Manual
vii
Heat Sink with Fan Considerations: .................................................................... 58
EPU-3311 Thermal Characterization ............................................................................... 59
Test Results.......................................................................................................... 60
Installing VersaLogic Thermal Solutions ......................................................................... 64
Hardware Assembly............................................................................................. 64
Installing the VL-HDW-406 Passive Heat Sink .................................................. 66
Installing the VL-HDW-411 Heat Sink Fan ........................................................ 67
Installing the VL-HDW-408 Heat Pipe Block ..................................................... 68
Tables
Table 1: Jumper Block V1 – Endpoint Termination ....................................................................................18
Table 2: Osprey Memory Characteristics .....................................................................................................19
Table 3: Links to Sections Describing Connectors .......................................................................................21
Table 4: Main Power Connector Pinout .......................................................................................................23
Table 5: Supported Power States..................................................................................................................24
Table 6: Mini PCIe / mSATA Socket Pinout ...............................................................................................33
Table 7: Mini PCIe Card Wireless Status LEDs ..........................................................................................35
Table 8: User I/O Connector Pinout and Pin Orientation .............................................................................38
Table 9: COM1/COM2 Connector Pinout....................................................................................................40
Table 10: Mini DisplayPort++ Connector Pinout.........................................................................................42
Table 11: LVDS Flat Panel Display Connector Pinout ................................................................................45
Table 12: LVDS Backlight Connector Pinout ..............................................................................................46
Table 13: Ethernet Connector Pinout ...........................................................................................................48
Table 14: User I/O Connector Pinout ...........................................................................................................51
Table 15: Auxiliary I/O Connector Pinout ...................................................................................................53
Table 16: CPU Thermal Trip Points.............................................................................................................56
Table 17: Temperature Monitoring Programs ..............................................................................................57
Table 18: Absolute Minimum and Maximum Air Temperatures..................................................................58
Table 19: EPU-3311 Thermal Testing Setup ...............................................................................................59
Table 20: Heat Pipe Additional Configuration Details .................................................................................63
VL-EPU-3311 Reference Manual
viii
Figures
Figure 1. The Osprey (VL-EPU-3311) .........................................................................................................10
Figure 2. Osprey (VL-EPU-3311) Block Diagram .......................................................................................12
Figure 3. Osprey Dimensions and Mounting Holes ......................................................................................13
Figure 4. Mounting Plate Dimensions ..........................................................................................................14
Figure 5. Typical Development Configuration .............................................................................................16
Figure 6. Jumpers As-Shipped Configuration...............................................................................................18
Figure 7. Baseboard Connector Locations....................................................................................................21
Figure 8. Main Power Connector Pin Orientation ........................................................................................22
Figure 9. Location and Pin Orientation of the Battery Connector ................................................................25
Figure 10. VL-CBR-0203 Latching Battery Module ....................................................................................26
Figure 11. Location of Status Indicator LEDs ..............................................................................................27
Figure 12. Location of the Power-good/Fault Indicator LED .......................................................................28
Figure 13. Location of the SATA Connector ...............................................................................................29
Figure 14. Location of the microSD Socket .................................................................................................30
Figure 15. Location of the USB Ports ..........................................................................................................31
Figure 16. Mini PCIe/mSATA Sockets ........................................................................................................32
Figure 17. Mini PCIe Wireless Status LEDs ................................................................................................35
Figure 18. Location of the SATA/mSATA Activity LED ............................................................................36
Figure 19. Location and Pin Orientation of the User I/O Connector ............................................................37
Figure 20. Location and Pin Orientation of the Serial I/O Connector ..........................................................39
Figure 21. Location of the Mini DisplayPort++ Connector ..........................................................................42
Figure 22. VL-CBR-2032 Mini DisplayPort to VGA Adapter .....................................................................43
Figure 23. Location of the LVDS Connectors ..............................................................................................44
Figure 24. Location and Pin Orientation of the Ethernet Connector ............................................................47
Figure 25. Onboard Ethernet Status LEDs ...................................................................................................49
Figure 26. VL-CBR-4005B Connectors, Switches, and LEDs .....................................................................50
Figure 27. Location and Pin Orientation of the User I/O Connector ............................................................51
Figure 28. Location and Pin Orientation of Auxiliary I/O Connector ..........................................................53
Figure 29. VL-CBR-4005B Dimensions and Mounting Holes .....................................................................54
Figure 30. EPU-3311-EAP Single Core Temperature Relative to Ambient Temperature............................60
Figure 31. EPU-3311-EBP Dual Core Temperature Relative to Ambient Temperature ..............................61
Figure 32. EPU-3311-EDP Quad Core Temperature Relative to Ambient Temperature .............................62
Figure 33. EPU-3311-EDP Quad Core with Heat Pipe - Temperature Relative to Ambient........................63
Figure 34. Hardware Assembly with Heat Plate Down ................................................................................64
Figure 35. Hardware Assembly with Heat Plate Up .....................................................................................65
Figure 36. Installing the Passive Heat Sink ..................................................................................................66
Figure 37. Installing the Heat Sink Fan ........................................................................................................67
Figure 38. Installing the Heat Pipe Block .....................................................................................................68
VL-EPU-3311 Reference Manual
ix
Introduction
1
Figure 1. The Osprey (VL-EPU-3311)
VL-EPU-3311 Reference Manual
10
Introduction
Features
The Osprey (VL-EPU-3311) is a feature-packed Embedded Processing Unit (EPU) engineered
and tested to meet the embedded industry’s evolving requirements to develop smaller, lighter,
and lower power embedded systems while adhering to stringent regulatory standards.
This embedded computer, equipped with an Intel† Atom† 38xx processor, is designed to
withstand extreme temperature, impact, and vibration. Its features include:


Two Mini PCIe/ mSATA sockets (one
full-length, one half-length)

Full ACPI support

One SATA port, 3.0 Gbits/s

One microSD socket
Two auto-detect 10BaseT/
100BaseTX/1000BaseT Ethernet
ports with network boot support
(Port 1 only)

Watchdog Timer, prescaler of
approximately 1 μs to 10 minutes.

Standard heat plate with optional
thermal solutions

Integrated Intel Gen 7 graphics core

Optional mounting plate

Four USB 2.0 host ports, one
USB 3.0/2.0 port

Field upgradeable AMI UEFI BIOS
with enhancements

Two RS-232/422/485 COM ports

RoHS compliant

One Mini DisplayPort++ interface

Extended temperature operation

One LVDS interface

Customization available


Intel Atom E3845 (1.91 GHz, Quad
Core), E3827 (1.75 GHz, Dual
Core), or E3815 (1.46 GHz, Single
Core) processor
4 GB or 2GB soldered-on
DDR3L-1333 RAM
The Osprey is compatible with popular operating systems including Microsoft†
Windows† 7/WES7, and Linux (see the VersaLogic OS Compatibility Chart).
Osprey EPUs are subjected to 100% functional testing and are backed by a limited five-year
warranty. Careful parts sourcing and US-based technical support ensure the highest possible
quality, reliability, service, and product longevity for this exceptional EPU.
Technical Specifications
Refer to the Osprey Data Sheet for complete specifications. Specifications are subject to change
without notification.
VL-EPU-3311 Reference Manual
11
Introduction
Block Diagram
Figure 2. Osprey (VL-EPU-3311) Block Diagram
VL-EPU-3311 Reference Manual
12
Introduction
Dimensions and Mounting
Osprey Dimensions
Figure 3 provides the board’s dimensions.
Figure 3. Osprey Dimensions and Mounting Holes
(Not to scale. All dimensions in millimeters.)
VL-EPU-3311 Reference Manual
13
Introduction
VL-HDW-405 Mounting Plate Dimensions
Figure 4. Mounting Plate Dimensions
(Not to scale. All dimensions in millimeters.)
VL-EPU-3311 Reference Manual
14
Configuration and Setup
2
Initial Configuration
The following components are recommended for a typical development system with the Osprey
EPU:

ATX power supply

VL-CBR-4005B paddleboard and VL-CBR-4005A cable. Refer to the chapter titled “VLCBR-4005B Paddleboard”, beginning on page 50 for details on the VL-CBR-4005B
paddleboard.

USB keyboard and mouse

SATA hard drive

USB CD-ROM drive

VGA monitor and a VL-CBR-2032 Mini DisplayPort-toVGA adapter

A thermal solution (using either VersaLogic accessories or a customer-designed solution)
You will also need an operating system (OS) installation CD-ROM.
Basic Setup
The following steps outline the procedure for setting up a typical development system. The
Osprey should be handled at an ESD workstation or while wearing a grounded antistatic wrist
strap.
Before you begin, unpack the Osprey and accessories. Verify that you received all the items you
ordered. Inspect the system visually for any damage that may have occurred in shipping.
Contact Support@VersaLogic.com immediately if any items are damaged or missing.
Gather all the peripheral devices you plan to attach to the Osprey as well as their interface and
power cables. It is recommended that you attach standoffs to the board to stabilize the board and
make it easier to work with.
Figure 5 shows a typical setup for the Osprey in the development environment.
VL-EPU-3311 Reference Manual
15
Configuration and Setup
Figure 5. Typical Development Configuration
1. Attach Cables and Peripherals

Attach a VGA monitor to the baseboard’s Mini DisplayPort++ connector using a VL-CBR2032.

Attach a SATA hard disk to the baseboard’s SATA connector using a VL-CBR-0701 or VLCBR-0702 cable.

Attach a VL-CBR-4005B paddleboard to the baseboard’s User I/O connector.

Connect a USB keyboard and USB mouse to the USB Type-A connectors on the VL-CBR4005B paddleboard.
VL-EPU-3311 Reference Manual
16
Configuration and Setup

Attach a USB CD-ROM drive to one of the USB Type-A connectors on the VL-CBR-4005B
paddleboard.
2. Connect Power Source

Plug the power adapter cable VL-CBR-0809 into the main power connector on the
baseboard. Attach the motherboard connector of the ATX power supply to the adapter.

Attach an ATX power cable to any 3.5-inch drive that is not already attached to the power
supply (hard drive or CD-ROM drive).
3. Review Configuration

Before you power up the system, double-check all the connections. Make sure all cables are
oriented correctly, that adequate power will be supplied to the Osprey, and all attached
peripheral devices.
4. Power On

Turn on the ATX power supply and the video monitor. If the system is correctly configured,
a video signal should be present.
5. Install Operating System

Install the operating system according to the instructions provided by the operating system
manufacturer.
BIOS Setup Utility
Refer to the VersaLogic System Utility Reference Manual for information on how to configure
the Osprey BIOS.
The Osprey permits you to store user-defined BIOS settings. This enables you to retrieve those
settings from cleared or corrupted CMOS RAM, or battery failure. All BIOS defaults can be
changed, except the time and date. BIOS defaults can be updated with the BIOS Update Utility.
CAUTION: If BIOS default settings make the system unbootable and prevent the user
from entering the BIOS Setup utility, the Osprey must be serviced by the factory.
Default BIOS Setup Values
After CMOS RAM is cleared, the system loads default BIOS parameters the next time the board
is powered on. The default CMOS RAM setup values will be used in order to boot the system
whenever the main CMOS RAM values are blank, or when the system battery is dead or has been
removed from the board.
Operating System Installation
The standard PC architecture used on the Osprey makes the installation and use of most of the
standard x86-based operating systems very simple. The operating systems listed on the
VersaLogic Software Support page use the standard installation procedures provided by the
maker of the operating system. Special optimized hardware drivers for a particular operating
system, or a link to the drivers, are available on the Osprey Support Page.
VL-EPU-3311 Reference Manual
17
Configuration and Setup
Jumper Blocks
Jumper As-Shipped Configuration
Figure 6. Jumpers As-Shipped Configuration
Jumper Configuration Summary
Table 1: Jumper Block V1 – Endpoint Termination
Pins
Function
1-2
COM2 termination
3-4
COM1 termination
VL-EPU-3311 Reference Manual
Description




Jumper In: Endpoint termination (for RS-485 or RS-422)
Jumper Out: Not terminated (RS-232)
Jumper In: Endpoint termination (for RS-485 or RS-422)
Jumper Out: Not terminated (RS-232)
18
Board Features
3
CPU
The Intel Atom E38xx SoC features integrated 3D graphics, video encode and decode, and
memory and display controllers in one package. The following CPU configurations are
available:

VL-EPU-3311-EAP: Intel Atom 3815 – 1.46 GHz, Single Core

VL-EPU-3311-EBP: Intel Atom 3827 – 1.75 GHz, Dual Core

VL-EPU-3311-EDP: Intel Atom 3845 – 1.91 GHz, Quad Core
CPU Die Temperature
The CPU die temperature is affected by numerous conditions, such as CPU utilization, CPU
speed, ambient air temperature, air flow, thermal effects of adjacent circuit boards, external heat
sources, and many others.
The thermal management for the Intel Atom E38xx series of processors consists of a sensor
located in the core processor area. The processor contains multiple techniques to help better
manage thermal attributes of the processor. It implements thermal-based clock throttling and
thermal-based speed step transitions. There is one thermal sensor on the processor that triggers
Intel's thermal monitor (the temperature at which the thermal sensor triggers the thermal monitor
is set during the fabrication of the processor). Triggering of this sensor is visible to software by
means of the thermal interrupt LVT entry in the local APIC. (See the Intel Atom Processor
E3800 Series Datasheet for complete information.)
System RAM
The Osprey has soldered-on SDRAM with the following characteristics:
Table 2: Osprey Memory Characteristics
Board Model
Memory Type
Capacity
Data Rate
VL-EPU-3311-EAP
DDR3L
2 GB
1066 MT/s – Single Channel
VL-EPU-3311-EBP
DDR3L
2 GB
1333 MT/s – Dual Channel
VL-EPU-3311-EDP
DDR3L
4 GB
1333 MT/s – Dual Channel
Flash Storage
The Osprey provides on-board eMMC Flash storage on certain models of the product:

VL-EPU-3311-EAP: none

VL-EPU-3311-EBP: 4 GB

VL-EPU-3311-EDP: 8 GB
VL-EPU-3311 Reference Manual
19
Board Features
I/O Interfaces
The Osprey’s I/O interfaces and their associated connectors are described in later chapters as
follows:

Mass Storage Interfaces (SATA, microSD, and eMMC Flash), beginning on page 29

Multi-purpose I/O (USB, Mini PCIe / mSATA, User I/O), beginning on page 31

Serial I/O, beginning on page 39

Video Interfaces (Mini DisplayPort++ and LVDS), beginning on page 41

Network Interfaces, beginning on page 47
Real-Time Clock (RTC)
The Osprey features a real-time clock/calendar (RTC) circuit. The Osprey supplies RTC voltage
in S5, S3, and S0 states, but requires an external +2.75 V to +3.3 V battery connection. Refer to
the section titled Battery Power Options on page 25 for more information. The RTC can be set
using the BIOS Setup utility.
Watchdog Timer
The Osprey has a watchdog timer that contains a selectable prescaler approximately 1 μs to
10 minutes. The watchdog timer can be configured in the BIOS Setup utility.
VL-EPU-3311 Reference Manual
20
Board Features
External Connectors
Baseboard Connector Locations
Figure 7. Baseboard Connector Locations
Table 3: Links to Sections Describing Connectors
USB 3.0 – page 31
microSD – page 30
Mini PCIe/mSATA – page 32
Mini PCIe – page 32
User I/O – page 51
Mini DisplayPort++ – page 41
Serial I/O – page 39
Battery – page 25
Ethernet – page 47
SATA – page 29
Main Power – page 22
LVDS Display – page 44
LVDS Backlight – page 46
VL-EPU-3311 Reference Manual
21
Board Features
Power Delivery
Main Power Connector
Main input power is applied to the Osprey through an 8-pin power connector. Figure 8 shows
the location and the pin orientation of the main power connector. Table 4 lists the pinout of the
main power connector.
Figure 8. Main Power Connector Pin Orientation
VL-EPU-3311 Reference Manual
22
Board Features
Table 4: Main Power Connector Pinout
Pin
Signal
Description
Pin
Signal
Description
1
V_MAIN
Main input voltage
(+8V to +17V)
2
V_MAIN
3
EARTH_GND
Earth ground
4
V_MAIN
5
POWER_FAULT
An open-drain signal
•
Low if power is OK
•
Open if there is a
power fault (a fault
can also simply be
the power is off)
6
GND
Signal ground
7
GND
Signal ground
8
GND
Signal ground
Main input voltage
(+8V to +17V)
Main input voltage
(+8V to +17V)
Cabling
An adapter cable, part number VL-CBR-0809, is available for connecting the Osprey to an ATX
power supply.
If your application requires a custom cable, the following information will be useful:
VL-EPU-3311 Board Connector
Mating Connector
Molex 055959-0830
Molex 051353-0800
Power Requirements
The Osprey requires a single +8 - 17 VDC supply capable of providing at least 35 W average
power that can also provide a peak power of 50 W. The input DC supply creates both the
standby and payload voltages provided to the CPU module.
The exact power requirements for the Osprey depend on several factors, including CPU
configuration (the number of cores, CPU clock rate), memory configuration, peripheral
connections, and attached devices, and others. For example, driving long RS-232 lines at high
speed can increase power demand.
The VersaLogic VL-PS-ATX12-300A is a 1U size ATX power supply suitable for use with the
Osprey. Use the VL-CBR-0809 adapter cable to attach the power supply to the main power
connector.
Power Delivery Considerations
Using the VersaLogic approved power supply (VL-PS-ATX12-300A) and power cable
(VL-CBR-0809) will ensure high quality power delivery to the board. Customers who design
their own power delivery methods should take into consideration the guidelines below to ensure
good power connections.
Also, the specifications for typical operating current do not include any off-board power usage
that may be fed through the Osprey power connector. Expansion boards and USB devices
plugged into the board will source additional power through the Osprey power connector.

Do not use wire smaller than 22 AWG. Use high quality UL 1007 compliant stranded wire.
VL-EPU-3311 Reference Manual
23
Board Features

The length of the wire should not exceed 18 inches.

Avoid using any additional connectors in the power delivery system.

The power and ground leads should be twisted together, or as close together as possible to
reduce lead inductance.

A separate conductor must be used for each of the power pins.

All power input pins and all ground pins must be independently connected between the
power source and the power connector.

Use a high quality power supply that can supply a stable voltage while reacting to widely
varying current draws.
Power Button
The User I/O connector (shown in Figure 19 on page 37) includes an input for a power button. A
momentary short to ground or assertion of pin 17 will cause a power button ACPI event. The
button event can be configured in Windows to enter an S3 power state (Sleep, Standby, or
Suspend-to-RAM), an S4 power state (Hibernate or Suspend-to-Disk), or an S5 power state
(Shutdown or Soft-Off). This connector uses IEC 61000-4-2-rated TVS components to help
protect against ESD damage.
A power button is provided on the VL-CBR-4005B paddleboard. Refer to the chapter titled VLCBR-4005B Paddleboard, beginning on page 50 for more information.
Supported Power States
Table 5 lists the Osprey’s supported power states.
Table 5: Supported Power States
Power state
S0 (G0)
S1 (G1-S1)
S3 (G1-S3)
S4 (G1-S4)
S5 (G2)
G3
Description
Working
All processor caches are flushed, and the CPUs stop executing instructions. Power to
the CPUs and RAM is maintained. Devices that do not indicate they must remain on
may be powered down.
Commonly referred to as Standby, Sleep, or Suspend-to-RAM. RAM remains
powered.
Hibernation or Suspend-to-Disk. All content of main memory is saved to non-volatile
memory, such as a hard drive, and is powered down.
Soft Off. Almost the same as G3 Mechanical Off, except that the power supply still
provides power, at a minimum, to the power button to allow return to S0. A full reboot
is required. No previous content is retained. Other components may remain powered
so the computer can "wake" on input from the keyboard, clock, modem, LAN, or USB
device.
Mechanical off (ATX supply switch turned off).
VL-EPU-3311 Reference Manual
24
Board Features
Battery Power Options
The battery circuit on the Osprey provides power for the Real-Time Clock (RTC) and power to
store BIOS Setup utility settings in non-volatile RAM.
The Osprey has multiple options for providing battery power:

Use an external battery (the VL-CBR-0203, for example) connected to the board through the
battery connector.

Use the battery supplied with the CBR-4005B paddleboard
Figure 9 shows the location and pin orientation of the battery connector.
Figure 9. Location and Pin Orientation of the Battery Connector
Cabling
If your application requires a custom cable, the following information will be useful:
VL-EPU-3311 Board Connector
Mating Connector
Molex 501331-0207
Molex 501330-0200
VL-CBR-0203 External Battery Module
The VL-CBR-0203 external battery module is compatible with the Osprey. For more
information, contact Sales@VersaLogic.com.
VL-EPU-3311 Reference Manual
25
Board Features
Figure 10. VL-CBR-0203 Latching Battery Module
External Speaker
The User I/O connector (shown in Figure 19 on page 37) includes a speaker output signal at pin
15. The VL-CBR-4005B paddleboard provides a piezoelectric speaker. Figure 26 on page 50
shows the location of the piezoelectric speaker on the VL-CBR-4005B paddleboard.
Push-button Reset
The User I/O connector (shown in Figure 19 on page 37) includes an input for a push-button
reset switch. Shorting pin 18 to ground causes the Osprey to reboot. This must be a mechanical
switch or an open-collector or open-drain active switch with less than a 0.5V low-level input
when the current is 1 mA. There must be no pull-up resistor on this signal. This connector uses
IEC 61000-4-2-rated TVS components to help protect against ESD damage.
A reset button is provided on the VL-CBR-4005B paddleboard. Refer to Chapter 6, VL-CBR4005B Paddleboard, beginning on page 50 for more information.
VL-EPU-3311 Reference Manual
26
Board Features
LEDs
Figure 11 shows the locations of the status indicator LEDs
LED
Status Indication
Reference
D8
SATA/mSATA (blue) activity
Figure 18 Page 36
D9
Power good (green) and fault indicator (yellow) dual-LED
Figure 12, page 28
D10
Link activity (green) for Ethernet port 0
Figure 25, page 49
D11
Link activity (green) for Ethernet port 1
Figure 25, page 49
D12
D13
D14
D15
Wireless WAN/LAN activity for module installed in full-length Mini PCIe
card socket dual-LED
Status of power and wireless PAN activity for module installed in fulllength Mini PCIe card socket dual-LED
Wireless WAN/LAN activity for module installed in half-length Mini PCIe
card socket dual-LED
Status of power and wireless PAN activity for module installed in halflength Mini PCIe card socket dual-LED
Table 7, page 35
Table 7, page 35
Table 7, page 35
Table 7, page 35
Figure 11. Location of Status Indicator LEDs
VL-EPU-3311 Reference Manual
27
Board Features
Power-Good/Fault Indicator LEDs
A dual-color (green/yellow) LED provides the following status:

Green – indicates power good when the Osprey in an S0 state. When in sleep modes, the
LED pulses with a very low duty cycle.

Yellow – indicates a software fault. If this LED remains lit after power-cycling the Osprey,
contact VersaLogic Customer Support.
Figure 12. Location of the Power-good/Fault Indicator LED
VL-EPU-3311 Reference Manual
28
Mass Storage Interfaces
4
SATA Interface
The Osprey provides one serial ATA (SATA) port that communicates at a rate of up to
3.0 Gbits/s (SATA II). The SATA connector is a SATA II-compatible right-angle connector with
latching capability. Power to SATA drive is supplied by the ATX power supply. Note that the
standard SATA drive power connector is different from the common 4-pin Molex connector used
on IDE drives. Most current ATX power supplies provide SATA connectors, and many SATA
drives provide both types of power connectors. If the power supply you are using does not
provide SATA connectors, adapters are available.
Figure 13. Location of the SATA Connector
VL-EPU-3311 Reference Manual
29
Mass Storage Interfaces
microSD Socket
The Osprey provides a microSD socket on the top side of the baseboard. The VL-F41 series of
microSD cards provide solid-state storage of 2 GB, 4 GB, or 8 GB. The microSD socket
accommodates cards with up to 32 GB of storage capacity.
Figure 14. Location of the microSD Socket
eMMC Flash
The Osprey provides on-board eMMC Flash storage on certain models of the product.
Specifically:

VL-EPU-3311-EAP: none

VL-EPU-3311-EBP: 4 GB

VL-EPU-3311-EDP: 8 GB
VL-EPU-3311 Reference Manual
30
Multi-purpose I/O
5
USB Interface
As shown in Figure 15, the Osprey provides access to seven USB ports.
Figure 15. Location of the USB Ports
VL-EPU-3311 Reference Manual
31
Multi-purpose I/O
Mini PCIe / mSATA Sockets
Figure 16 shows the location of the two Mini PCIe / mSATA sockets:

The socket at J13 accepts a half-length Mini PCI Express (PCIe) card.

The socket at J12 accepts a full-length Mini PCI Express (PCIe) card or an mSATA module.
The Mini PCIe interface includes one PCIe x1 lane, one USB 2.0 channel, and the SMBus
interface. The socket is compatible with plug-in Wi-Fi modems, GPS receivers, MIL-STD-1553,
flash data storage, and other cards for added flexibility. For information on Mini PCIe modules
available from VersaLogic, contact Sales@VersaLogic.com.
The VL-MPEs-F1E series of mSATA modules provide flash storage of 4 GB, 16 GB, or 32 GB.
To secure a Mini PCIe card or mSATA module to the on-board standoffs, use two M2.5 x 6 mm
pan head Philips nylon screws. These screws are available in quantities of 10 in the VL-HDW108 hardware kit from VersaLogic.
Figure 16. Mini PCIe/mSATA Sockets
VL-EPU-3311 Reference Manual
32
Multi-purpose I/O
Table 6: Mini PCIe / mSATA Socket Pinout
Pin
Mini PCIe
Signal Name
Mini PCIe Function
mSATA Signal
Name
mSATA Function
1
WAKE#
Wake
Reserved
Not connected
2
3.3VAUX
3.3 V auxiliary source
+3.3V
3.3 V source
3
NC
Not connected
Reserved
Not connected
4
GND
Ground
GND
Ground
5
NC
Not connected
Reserved
Not connected
6
1.5V
1.5 V power
+1.5V
1.5 V power
7
CLKREQ#
Reference clock request
Reserved
Not connected
8
NC
Not connected
Reserved
Not connected
9
GND
Ground
GND
Ground
10
NC
Not connected
Reserved
Not connected
11
REFCLK-
Reference clock input –
Reserved
Not connected
12
NC
Not connected
Reserved
Not connected
13
REFCLK+
Reference clock input +
Reserved
Not connected
14
NC
Not connected
Reserved
Not connected
15
GND
Ground
GND
Ground
16
NC
Not connected
Reserved
Not connected
17
NC
Not connected
Reserved
Not connected
18
GND
Ground
GND
Ground
19
NC
Not connected
Reserved
Not connected
20
W_DISABLE#
Wireless disable
Reserved
Not connected
21
GND
Ground
GND
Ground
22
PERST#
Card reset
Reserved
Not connected
23
PERn0
PCIe receive –
+B
Host receiver diff. pair +
24
3.3VAUX
3.3 V auxiliary source
+3.3V
3.3 V source
25
PERp0
PCIe receive +
-B
Host receiver diff. pair –
26
GND
Ground
GND
Ground
27
GND
Ground
GND
Ground
28
1.5V
1.5 V power
+1.5V
1.5 V power
29
GND
Ground
GND
Ground
30
SMB_CLK
SMBus clock
Two Wire I/F
Two wire I/F clock
31
PETn0
PCIe transmit –
-A
Host transmitter diff. pair –
32
SMB_DATA
SMBus data
Two Wire I/F
Two wire I/F data
33
PETp0
PCIe transmit +
+A
Host transmitter diff. pair +
34
GND
Ground
GND
Ground
35
GND
Ground
GND
Ground
36
USB_D-
USB data –
Reserved
Not connected
37
GND
Ground
GND
Ground
38
USB_D+
USB data +
Reserved
Not connected
39
3.3VAUX
3.3V auxiliary source
+3.3V
3.3 V source
40
GND
Ground
GND
Ground
VL-EPU-3311 Reference Manual
33
Multi-purpose I/O
Pin
Mini PCIe
Signal Name
41
3.3VAUX
42
43
Mini PCIe Function
mSATA Signal
Name
mSATA Function
3.3 V auxiliary source
+3.3V
3.3 V source
LED_WWAN#
Wireless WAN LED
Reserved
Not connected
GND
mSATA Detect 1
GND/NC
Ground/Not connected 2
44
LED_WLAN#
Wireless LAN LED
Reserved
Not connected
45
NC
Not connected
Vendor
Not connected
46
LED_WPAN#
Wireless PAN LED
Reserved
Not connected
47
NC
Not connected
Vendor
Not connected
48
1.5V
1.5 V power
+1.5V
1.5 V power
49
Reserved
Reserved
DA/DSS
Device activity 3
50
GND
Ground
GND
Ground
51
Reserved
Reserved
GND
Ground 4
52
3.3VAUX
3.3 V auxiliary source
+3.3V
3.3 V source
Notes:
1.
This pin is not grounded on the Osprey since it can be used to detect the presence of an mSATA
module versus a Mini PCIe card.
2.
This pin is not grounded on the Osprey to make it available for mSATA module detection.
3.
This signal drives the blue LED activity indicator shown in Figure
disk activity (if supported by the mSATA module).
4.
Some Mini PCIe cards use this signal as a second Mini PCIe card wireless disable input. On the
Osprey, this signal is available for use for mSATA versus Mini PCIe card detection. There is an
option on the VersaLogic Features BIOS Setup utility screen for setting the mSATA detection
method.
18. This LED lights with mSATA
W_Disable# Signal
The W_DISABLE# is for use with optional wireless Ethernet Mini PCIe cards. The signal
enables you to disable a wireless card’s radio operation in order to meet public safety regulations
or when otherwise desired. The W_DISABLE# signal is an active low signal that when driven
low (shorted to ground) disables radio operation on the Mini PCIe card wireless device. When
the W_DISABLE# is not asserted, or in a high impedance state, the radio may transmit if not
disabled by other means such as software. The W_DISABLE# signals for each of the two
Minicards are controlled by registers in the FPGA.
VL-EPU-3311 Reference Manual
34
Multi-purpose I/O
Mini PCIe Card Wireless Status LEDs
Dual-colored (green and yellow) LEDs provide status for modules installed in the Mini
PCIe/mSATA sockets. These LEDs light when the associated device is installed and capable of
transmitting. Table 7 lists the states of the LEDs. Figure 17 shows their location on the Osprey.

LEDs D12 and D13 provide status for modules installed in the full-length module socket

LEDs D14 and D15 provide status for modules installed in the half-length module socket
Table 7: Mini PCIe Card Wireless Status LEDs
LED
Color
•
D12 (Socket for full-length modules)/
•
D14 (Socket for half- length modules)
•
D13 (Socket for full- length modules)/
•
D15 (Socket for half- length modules)
Green
Yellow
Green
Yellow
State
Description
On
Wireless WAN active
Off
Wireless WAN inactive
On
Wireless LAN active
Off
Wireless LAN inactive
On
Wireless PAN active
Off
Wireless PAN inactive
On
Minicard power is ON
Off
Minicard power is OFF
Figure 17. Mini PCIe Wireless Status LEDs
VL-EPU-3311 Reference Manual
35
Multi-purpose I/O
mSATA Activity LED
Figure 18 shows the location of the SATA/mSATA activity blue LED. This LED indicates
activity on either the SATA or the mSATA interface. Not all mSATA drives provide this disk
activity signal.
Figure 18. Location of the SATA/mSATA Activity LED
VL-EPU-3311 Reference Manual
36
Multi-purpose I/O
User I/O Connector
The 40-pin user I/O connector incorporates the signals for the following:
 Four USB ports

Eight GPIO lines (these are functionally muxed with six timer I/O signals per FPGA
registers). There are eight timer signals and they share digital I/Os 16-9. The eight GPIO
lines on the paddleboard each have an alternate mode, accessible using the FPGA’s
AUXMOD1 register. Refer to the EPU-3311 Programmer’s Reference Manual for more
information on FPGA registers.

Three LEDs (two Ethernet link status LEDs and a programmable LED)

Two I2C signals (clock and data)

Push-button power switch

Push-button reset switch

Speaker output
This connector uses IEC 61000-4-2-rated TVS components to help protect against ESD damage.
Figure 19 shows the location and pin orientation of the user I/O connector.
Figure 19. Location and Pin Orientation of the User I/O Connector
VL-EPU-3311 Reference Manual
37
Multi-purpose I/O
Table 8 provides the pinout of the user I/O connector.
Table 8: User I/O Connector Pinout and Pin Orientation
Pin
Signal
Pin
1
+5 V (Note 1)
2
Signal
GND
3
USB1_P
4
USB2_P
5
USB1_N
6
USB2_N
7
+5V (Note 2)
8
GND
9
USB3_P
10
USB4_P
11
USB3_N
12
USB4_N
13
+3.3 V (Note 3)
14
GND
15
SPKR#
16
PLED#
17
PWR_BTN#
18
RST_BTN#
19
GND
20
GND
21
I2C Clock
22
V_BATT
23
I2C Data
24
RETURN_BATT
25
GND
26
GND
27
GPIO1
28
GPIO2
29
GPIO3
30
GPIO4
31
GND
32
GND
33
GPIO5
34
GPIO6
35
GPIO7
36
GPIO8
37
+3.3 V (Note 4)
38
GND
39
ETH0 LED
40
ETH1 LED
Notes:
1. This is the +5V VBUS power for USB Port 1 and 2.
2. This is the +5V VBUS power for USB Port 3 and 4.
3. This 3.3 V power goes off in sleep modes. The SPKR# uses this power as should the
PLED# (there is no requirement for PLED# to use this power, but the VL-CBR-4005B
paddleboard does).
4. This 3.3 V power can be turned on or off similar to the 3.3V power to the Mini Card via
the FPGA (can go off in sleep modes or always stay on; by default it goes off in sleep
modes). It is used for the 10 kΩ pullup resistor power on the 8x GPIOs and usually for the
2x Ethernet LEDs, however, the Ethernet LEDs can be powered by a 3.3 V power source.
Cabling
An adapter cable, part number VL-CBR-4005A, is available for connecting the CBR-4005B
paddleboard to the VL-EPU-3311. This is a 12-inch, Pico-Clasp 40-pin to 40-pin cable.
If your application requires a custom cable, the following information will be useful:
EPU-3311 Board Connector
Mating Connector
Molex 501571-4007
Molex 501189-4010
VL-EPU-3311 Reference Manual
38
Serial I/O
6
Serial Ports
The Osprey provides two serial ports. Both ports can be operated in RS-232, RS-422, or RS-485
mode. IRQ lines are chosen in the BIOS Setup utility. The UARTs are 16550-based serial ports
and are implemented in the FPGA.
Figure 20 shows the location and pin orientation of the serial I/O connector.
Figure 20. Location and Pin Orientation of the Serial I/O Connector
VL-EPU-3311 Reference Manual
39
Serial I/O
Serial Port Connector Pinout
Table 9: COM1/COM2 Connector Pinout
Pin
RS-232 Signal
RS-422/RS-485 Signal
1
RTS1
TXD1_P
2
TXD1#
TXD1_N
3
CTS1
RXD1_P
4
RXD1#
RXD1_N
5
GND
GND
6
RTS2
TXD2_P
7
TXD2#
TXD2_N
8
CTS2
RXD2_P
9
RXD2#
RXD2_N
10
GND
GND
Port
COM1
—
COM2
—
Cabling
An adapter cable, part number CBR-1014, is available for routing the serial I/O signals to 9-pin
D-sub connectors. This is a 12-inch, Pico-Clasp 10-pin to two 9-pin D-sub connector cable.
If your application requires a custom cable, the following information will be useful:
EPU-3311 Board Connector
Mating Connector
Molex 501331-1007
Molex 501330-1000
COM Port Configuration
The board’s jumper block configures the serial ports for RS-232 or RS-485/RS-422 operation.
See the section titled “Jumper Blocks” on page 18 for details. The termination resistor should
only be enabled for RS-485 or RS-422 endpoint stations and not for intermediate stations.
Termination must not be used for RS-232.
Console Redirection
The Osprey can be configured for remote access by redirecting the console to a serial
communications port. The BIOS Setup utility and some operating systems (such as MS-DOS)
can use this console for user interaction. The default settings for the redirected console are as
follows:

115,200 baud rate

8 data bits, no parity

1 stop bit)

No parity

No flow control
VL-EPU-3311 Reference Manual
40
Video Interfaces
7
The Intel Atom E38xx processor series contains an integrated graphics engine with advanced
2D/3D graphics, video decode and encode capabilities, and a display controller. The Osprey
provides the following video interfaces:

One Mini DisplayPort++ connector

One LVDS display connector; a 4-pin LVDS backlight connector is also provided
Mini DisplayPort++ Connector
DisplayPort consists of three interfaces:

Main Link – transfers high-speed isochronous video and audio data

Auxiliary channel – used for link management and device control; the EDID is read over this
interface

Hot Plug Detect – indicates that a cable is plugged in
The DisplayPort interface supports:

Audio signaling

DP++ mode allowing connection to an HDMI device through a passive adapter. “Passive”
means that the adapter does not require external power (because it uses the DP port’s 3.3 V
power) and it does not require software drivers.
Figure 21 shows the location of the 20-pin Mini DisplayPort++connector. Table 10 lists the
pinout of the Mini DisplayPort++ connector.
VL-EPU-3311 Reference Manual
41
Video Interfaces
Figure 21. Location of the Mini DisplayPort++ Connector
Table 10: Mini DisplayPort++ Connector Pinout
Pin
1
3
5
7
9
11
13
15
17
19
Signal
GND
ML_LANE0_P
ML_LANE0_N
GND
ML_LANE1_P
ML_LANE1_N
GND
ML_LANE2_P
ML_LANE2_N
GND
VL-EPU-3311 Reference Manual
Pin
2
4
6
8
10
12
14
16
18
20
Signal
HOT PLUG DETECT
CONFIG 1
CONFIG 2
GND
ML_LANE3_P
ML_LANE3_N
GND
AUX_CH_P
AUX_CH_N
DP_POWER (3.3V)
42
Video Interfaces
VGA Output
A VGA monitor can be attached to the Mini DisplayPort++ connector using the VL-CBR-2032
Mini DisplayPort-to- VGA adapter, similar to the one shown in Figure 22.
Figure 22. VL-CBR-2032 Mini DisplayPort to VGA Adapter
Mini DisplayPort Cable Options
There is a 36 inch Mini DisplayPort to Mini DisplayPort cabling option available. (VL-CBR2031) There is also a Mini DisplayPort to HDMI 6 inch cable available (VL-CBR-2033). There
is a Mini DisplayPort to VGA cable kit as well. (VL-CBR-2032)
VL-EPU-3311 Reference Manual
43
Video Interfaces
LVDS Interface
LVDS Flat Panel Display Connector
The integrated LVDS flat panel display in the Osprey is an ANSI/TIA/EIA-644-1995
specification-compliant interface. It can support 18 or 24 bits of RGB pixel data plus 3 bits of
timing control (HSYNC/VSYNC/DE) on the 4 differential data output pairs. The LVDS
interface supports a maximum resolution of 1280 x 768 (60 Hz). Figure 23 shows the location of
the LVDS display connector as well as the location and pin orientation of the LVDS back light
connector.
The BIOS Setup utility provides several options for standard LVDS flat panel types. If these
options do not match the requirements of the panel you are using, contact
Support@VersaLogic.com for a custom video BIOS.
Figure 23. Location of the LVDS Connectors
VL-EPU-3311 Reference Manual
44
Video Interfaces
Table 11: LVDS Flat Panel Display Connector Pinout
Pin
Signal Name
Function
1
GND
Ground
2
NC
Not Connected
3
LVDSA3
Differential Data 3 (+)
4
LVDSA3#
Differential Data 3 (-)
5
GND
Ground
6
LVDSCLK0
Differential Clock (+)
7
LVDSCLK0#
Differential Clock (-)
8
GND
Ground
9
LVDSA2
Differential Data 2 (+)
10
LVDSA2#
Differential Data 2 (-)
11
GND
Ground
12
LVDSA1
Differential Data 1 (+)
13
LVDSA1#
Differential Data 1 (-)
14
GND
Ground
15
LVDSA0
Differential Data 0 (+)
16
LVDSA0#
Differential Data 0 (-)
17
GND
Ground
18
GND
Ground
19
+3.3V
+3.3 V (Protected)
20
+3.3V
+3.3 V (Protected)
The +3.3V power provided to pins 19 and 20 is protected by a software-controllable power
switch (1 Amp max.). This switch is controlled by the LVDD_EN signal from the LVDS
interface controller in the CPU.
Cabling
The following LVDS cables are available for use with the Osprey board:

VL-CBR-2015 – a 20-inch 24-bit LVDS 1mm Hirose cable

VL-CBR-2016 – a 20-inch 18-bit LVDS flat-panel display cable with a JAE connector

VL-CBR-2017 – a 20-inch 24-bit 1.25 mm Hirose cable
If your application requires a custom cable, the following information will be useful:
EPU-3311 Board Connector
Hirose DF19G-20P-1H(54)
VL-EPU-3311 Reference Manual
Mating Connector
•
Hirose DF19G-20S-1C (housing)
•
Hirose DF19-2830SCFA x19 (crimp socket)
45
Video Interfaces
LVDS Backlight Connector
Figure 20 on page 44 shows the location and pin orientation of the LVDS back light connector.
Table 12 lists the pinout of the LVDS backlight connector.
Table 12: LVDS Backlight Connector Pinout
Pin
1
2
3
4
Signal Name
Function
LVDS backlight enable. (5V TTL-level signal by default but
will operate at higher voltages if the LVDS_BKLT_PWR is
LVDS_BKLT_EN
provided).
High = enabled, Low = disabled.
Signal Ground
Ground
LVDS backlight control. (5V TTL-level signal by default but
will operate at higher voltages if the LVDS_BKLT_PWR is
LVDS_BKLT_CTRL
provided). This is a PWM signal and the duty cycle can be
set in the BIOS Setup utility.
Optional backlight logic power. (Can range from +5V to +14V
and sets the high-value on the LVDS_BKLT_EN and
LVDS_BKLT_LOGIC_PWR
LVDS_BKLT_CTRL signals.)
On-board +5V power is used when this is not connected.
Cabling
An adapter cable, part number CBR-0404, is available for powering the LVDS backlight from
the Osprey board.
If your application requires a custom cable, the following information will be useful:
EPU-3311 Board Connector
Mating Connector
Molex 501568-0407
Molex 501330-0400
VL-EPU-3311 Reference Manual
46
Network Interfaces
8
The Osprey provides two Intel I210-IT Gigabit Ethernet controllers. The controller provides a
standard IEEE 802.3 Ethernet interface for 1000Base-T, 100Base-TX, and 10Base-T
applications. The I210-IT Ethernet controller auto-negotiates connection speed. Drivers are
readily available to support a variety of operating systems. For more information on this device,
refer to the Intel I210 Ethernet Controller datasheet.

Integrator’s Note: Ethernet Port 1 supports network boot; Port 0 does not.
Ethernet Connector
The Ethernet connector provides access to the Ethernet ports 0 and 1. The connector uses IEC
61000-4-2-rated TVS components to help protect against ESD damage. Figure 24 shows the
location and pin orientation of the Ethernet connector.
Figure 24. Location and Pin Orientation of the Ethernet Connector
VL-EPU-3311 Reference Manual
47
Network Interfaces
Table 13 lists the pinout of the Ethernet connector.
10/100 Signals
10/100/1000
Signals
10/100 Signals
10/100/1000
Signals
1
- Auto Switch (Tx or Rx)
BI_DD-
3
- Auto Switch (Tx or Rx)
BI_DB-
2
+ Auto Switch (Tx or Rx)
BI_DD+
4
+ Auto Switch (Tx or Rx)
5
- Auto Switch (Tx or Rx)
BI_DC-
BI_DB+
6
+ Auto Switch (Tx or Rx)
BI_DC+
7
- Auto Switch (Tx or Rx)
BI_DA-
8
+ Auto Switch (Tx or Rx)
BI_DA+
9
- Auto Switch (Tx or Rx)
BI_DD-
10
+ Auto Switch (Tx or Rx)
BI_DD+
11
13
- Auto Switch (Tx or Rx)
BI_DB-
12
+ Auto Switch (Tx or Rx)
BI_DB+
- Auto Switch (Tx or Rx)
BI_DC-
14
+ Auto Switch (Tx or Rx)
BI_DC+
15
- Auto Switch (Tx or Rx)
BI_DA-
16
+ Auto Switch (Tx or Rx)
BI_DA+
Pin
Port 0
Pin
Port 1
Port 1
Port 0
Table 13: Ethernet Connector Pinout
Cabling
An adapter cable, part number CBR-1604, is available. This is a 12-inch, 16-pin Click-Mate to
two RJ-45 connector cables.
If your application requires a custom cable, the following information will be useful:
EPU-3311 Board Connector
Mating Connector
Molex 503148-1690
Molex 503149-1600
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48
Network Interfaces
Ethernet Status LEDs
Figure 25 shows the location of the Ethernet status LEDs.

LED D10 –
indicates link activity on Ethernet port 0

LED D11 –
indicates link activity on Ethernet port 1
Figure 25. Onboard Ethernet Status LEDs
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49
VL-CBR-4005B Paddleboard
9
VL-CBR-4005B Connectors and Indicators
Figure 26 shows the locations of the connectors, switches, and LEDs on the VL-CBR-4005B
paddleboard.
Figure 26. VL-CBR-4005B Connectors, Switches, and LEDs
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50
VL-CBR-4005B Paddleboard
User I/O Connector
Figure 27 shows the location and pin orientation of the user I/O connector.
Figure 27. Location and Pin Orientation of the User I/O Connector
Table 14: User I/O Connector Pinout
Pin
Signal
Pin
Signal
1
+5 V
2
GND
3
USB1_P
4
USB2_P
5
USB1_N
6
USB2_N
7
+5V
8
GND
9
USB3_P
10
USB4_P
11
USB3_N
12
USB4_N
13
+3.3 V (Note 1)
14
GND
15
SPKR#
16
PLED#
17
PWR_BTN#
18
RST_BTN#
19
GND
20
GND
21
I2C Clock
22
V_BATT
23
I2C Data
24
V_BATT_RETURN
25
GND
26
GND
27
GPIO1
28
GPIO2
29
GPIO3
30
GPIO4
31
GND
32
GND
33
GPIO5
34
GPIO6
35
GPIO7
36
GPIO8
37
+3.3 V (Note 2)
38
GND
39
ETH0 LED
40
ETH1 LED
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51
VL-CBR-4005B Paddleboard
Notes for Table 14:
1. This 3.3 V power goes off in sleep modes. The SPKR# uses this power as should the
PLED# (there is no requirement for PLED# to use this power, but the VL-CBR-4005B
paddleboard does).
2. This 3.3 V power can be turned on or off similar to the 3.3V power to the Mini Card via
the FPGA (can go off in sleep modes or always stay on; by default it goes off in sleep
modes). It is used for the 10 kΩ pullup resistor power on the 8x GPIOs and usually for
the 2x Ethernet LEDs, however, the Ethernet LEDs can be powered by a 3.3 V power
source.
Cabling
An adapter cable, part number CBR-4005A, is available for connecting the VL-CBR-4005B
paddleboard to the EPU-3311. This is a 12-inch, Pico-Clasp 40-pin to 40-pin cable
If your application requires a custom cable, the following information will be useful:
CBR-4005B Board Connector
Mating Connector
Molex 501571-4007
Molex 501189-4010
On-board Battery
CAUTION:
To prevent shorting, premature failure or damage to the Lithium battery, do not
place the board on a conductive surface such as metal, black conductive foam
or the outside surface of a metalized ESD protective pouch. The Lithium
battery may explode if mistreated. Do not recharge, disassemble, or dispose of
the battery in fire. Dispose of used batteries promptly.
Nominal battery voltage is 3.0 V. If the voltage drops below 2.7 V, contact the factory for a
replacement. The life expectancy under normal use is approximately five years.
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52
VL-CBR-4005B Paddleboard
Auxiliary I/O Connector
Figure 28 shows the location and pin orientation of the auxiliary I/O connector.
Figure 28. Location and Pin Orientation of Auxiliary I/O Connector
Table 15: Auxiliary I/O Connector Pinout
Pin
Signal
Pin
Signal
1
I2C Clock
2
V_BATT
3
I2C Data
4
V_BATT_RETURN
5
GND
6
GND
7
GPIO1
8
GPIO2
9
GPIO3
10
GPIO4
11
GND
12
GND
13
GPIO5
14
GPIO6
15
GPIO7
16
GPIO8
17
+3.3 V
18
GND
19
Ethernet Port 0 LED
20
Ethernet Port 1 LED
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53
VL-CBR-4005B Paddleboard
Dimensions and Mounting Holes
Figure 29. VL-CBR-4005B Dimensions and Mounting Holes
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54
Thermal Considerations
10
This chapter discusses the following topics related to thermal issues:

Selecting the correct thermal solution for your application

EPU-3311 thermal characterization

Installing the passive (HDW-406 heat sink), the active (HDW-411 fan), and the heat pipe
block (HDW-408) thermal solutions available from VersaLogic
Selecting the Correct Thermal Solution for Your Application
This section provides guidelines for the overall system thermal engineering effort.
Heat Plate
The heat plate supplied with the Osprey is the basis of the thermal solution. The heat plate draws
heat away from the CPU chip as well as other critical components. Some components rely on the
ambient air temperature being maintained at or below the maximum specified 85 ºC temperature.
The heat plate is designed with the assumption that the user’s thermal solution will maintain the
top surface of the heat plate at 90 ºC or less. If that temperature threshold is maintained, the
CPU will remain safely within its operating temperature limits.
CAUTION:
By itself, the heat plate is not a complete thermal solution. Integrators should either implement a
thermal solution using the accessories available from VersaLogic or develop their own thermal
solution that attaches to the heat plate, suitable for environments in which the EPU-3311 will be
used. As stated above, the thermal solution must be capable of keeping the top surface of the
heat place at or below 90 ºC and the air surrounding the components in the assembly at or below
85 ºC.
The heat plate is permanently affixed to the Osprey and must not be removed. Removal of the
heat plate voids the product warranty. Attempting to operate the Osprey without the heat plate
voids the product warranty and can damage the CPU.
System-level Considerations
The Osprey is often mounted directly to another thermally controlled surface via its heat plate
(that is, the inside surface of an enclosure). In this case, the user needs to maintain the heat plate
at or below 90 ºC by controlling the mounting surface temperature. The EPU-3311 thermal
solutions available from VersaLogic – the HDW-406 heat sink with or without the HDW-411
fan, or the HDW-408 heat pipe block – can be used in the user’s final system or only used during
product development as a temporary bench-top solution.
The ambient air surrounding the EPU-3311 needs to be maintained at 85 ºC or below. This may
prove to be challenging depending on how and where the EPU-3311 is mounted in the end user
system.
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55
Thermal Considerations
The decision as to which thermal solution to use can be based on several factors including:

Number of CPU cores in the SoC (single, dual, or quad)

CPU and video processing utilization by the user application

Temperature range within which the EPU-3311 will be operated

Air movement (or lack of air movement)
Most of these factors involve the demands of the user application on the EPU-3311 and cannot
be isolated from the overall thermal performance. Due to the interaction of the user application,
the Osprey thermal solution, and the overall environment of the end system, thermal performance
cannot be rigidly defined.
The ambient air surrounding the EPU-3311 needs to be maintained at 85 ºC or below. This
would include the space between the two main boards as well as the space beneath an installed
Mini PCIe expansion board. Standard methods for addressing this requirement include the
following:

Provide a typical airflow of 100 linear feet per minute (LFM) / 0.5 linear meters per second
(as described in the section titled EPU-3311 Thermal Characterization, beginning on page
59) within the enclosure

Position the EPU-3311 board to allow for convective airflow

Lower the system level temperature requirement as needed
CPU Thermal Trip Points
The CPU cores in the Osprey have their own thermal sensors. Coupled with these sensors are
specific reactions to three thermal trip points. Table 16 describes the three thermal trip points.
Note that these are internal temperatures that are about 10 ºC above the heat plate temperature.
Table 16: CPU Thermal Trip Points
Trip Point
Passive (Note 1)
Critical (Note 2)
Maximum core temperature
Description
At this temperature, the CPU cores throttle back to a lower speed. This
reduces the power draw and heat dissipation, but lowers the processing
speed.
At this temperature, the operating system typically puts the board into a
sleep or other low-power state.
The CPU turns itself off when this temperature is reached. This is a fixed
trip point and cannot be adjusted.
Notes:
1. The default value in the BIOS Setup utility for this trip point is 90 ºC.
2. The default value in the BIOS Setup utility for this trip point is 100 ºC.
These trip points allow maximum CPU operational performance while maintaining the lowest
CPU temperature possible. The long-term reliability of any electronic component is degraded
when it is continually run near its maximum thermal limit. Ideally, the CPU core temperatures
will be kept well below 100 ºC with only brief excursions above.
CPU temperature monitoring programs are available to run under both Windows and Linux.
Table 17 lists some of these hardware monitoring programs.
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56
Thermal Considerations
Table 17: Temperature Monitoring Programs
Program Type
Operating System
Windows
http://www.alcpu.com/CoreTemp/
Hardware Monitor
http://www.cpuid.com/softwares/hwmonitor.html
Open Hardware Monitor
Linux
VL-EPU-3311 Reference Manual
Description
Core Temperature
lm-sensors
http://openhardwaremonitor.org/
http://en.wikipedia.org/wiki/Lm_sensors
57
Thermal Considerations
Thermal Specifications, Restrictions, and Conditions
Graphical test data is in the section titled EPU-3311 Thermal Characterization, beginning on
page 59. Refer to that section for the details behind these specifications. These specifications
are the thermal limits for using the EPU-3311 with one of the defined thermal solutions.
Due to the unknown nature of the entire thermal system, or the performance requirement of the
application, VersaLogic cannot recommend a particular thermal solution. This information is
intended to provide guidance in the design of an overall thermal system solution.
Table 18: Absolute Minimum and Maximum Air Temperatures
-40 ° to +85 °C
With Heat Sink
(HDW-406)
-40 ° to +85 °C
With Heat Sink + Fan
(HDW-406 + HDW-411)
-40 ° to +85 °C
VL-EPU-3311-EBP
-40 ° to +85 °C
-40 ° to +85 °C
-40 ° to +85 °C
VL-EPU-3311-EDP
-40 ° to +85 °C
-40 ° to +85 °C
-40 ° to +85 °C
Board
With Heat Plate
VL-EPU-3311-EAP
Overall Restrictions and Conditions:

Ranges shown assume less than 90% CPU utilization.

Keep the maximum CPU core temperature below 100ºC.

The ambient air surrounding the EPU-3311 needs to be maintained at 85 ºC or below. This
includes the space between the two main boards as well as the space beneath an installed
Mini PCIe expansion board. A recommended overall air flow of 100 linear feet per minute
(LFM) / 0.5 linear meters per second (LMS) addresses this requirement. If this air flow is
not provided, other means must be implemented to keep the adjacent air at 85 ºC or below.
Heat Plate Only Restrictions and Conditions:

The heat plate must be kept below 90 °C. This applies to a heat plate mounted directly to
another surface as well as when the HDW-408 heat pipe block is used.
Heat Sink Only Considerations:

At 85°C air temperature and 90% CPU utilization, there will be little if any thermal margin
to a CPU core temperature of 100 °C or the passive trip point (see test data). If this is the use
case, consider adding a fan or other additional air flow.
Heat Sink with Fan Considerations:

The heat sink and fan combination cools the CPU when it is running in high temperature
environments, or when the application software is heavily utilizing the CPU or video
circuitry. The fan assists in cooling the heat sink and provides additional air movement
within the system.

Integrator’s Note: The ambient air surrounding the EPU-3311 needs to be maintained
at 85 °C or below.
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58
Thermal Considerations
EPU-3311 Thermal Characterization
The EPU-3311 board underwent the following thermal characterization tests:

Test Scenario 1: Single core EPU-3311-EAP + HDW-406 heat sink

Test Scenario 2: Dual core EPU-3311-EBP + HDW-406 heat sink, with/without HDW-411
fan

Test Scenario 3: Quad core EPU-3311-EDP + HDW-406 heat sink, with/without HDW-411
fan

Test Scenario 4: Quad core EPU-3311-EDP + HDW-406 heat sink + HDW-408 heat pipe
block, with/without HDW-411 fan
Table 19 describes the thermal testing setup for the board.
Table 19: EPU-3311 Thermal Testing Setup
EPU-3311 (Osprey) single/dual/quad core CPU with:
Hardware configuration
BIOS
Operating system














Test environment
HDW-406 (passive heat sink)
HDW-408 (heat pipe block)
HDW-411 (heat sink fan)
One VGA display device (connected through the LVDS interface)
One SATA hard disk drive
Two RS-232 ports in loopback configuration
One VersaLogic VL-MPEe-E3 Mini PCIe Gigabit Ethernet module
Two active Ethernet ports in loopback configuration
Two USB 2.0 ports in loopback configuration (Note)
USB keyboard and mouse (Note)
ID string: Osprey_3.1.0.334.r1.101
Passive thermal trip point setting: 105 ºC
Critical thermal trip point setting: 110 ºC
Microsoft Windows 7, SP1

Test software
4 GB of DDR3L DRAM (2 GB for the single- and dual-core board models)

Passmark BurnIn Test v7.1 b1017
- CPU utilization ~90%
Intel Thermal Analysis Tool (TAT) v5.0.1014
- Primarily used to read the CPU core temperature
Thermal chamber
Note: This device is connected through a VersaLogic VL-CBR-4005B paddleboard.
The test results reflect the test environment within the temperature chamber used. This particular
chamber has an airflow of about 0.5 linear meters per second (~100 linear feet per minute).
Thermal performance can be greatly enhanced by increasing the airflow beyond 0.5 linear meters
per second.
The system power dissipation is primarily dependent on the application program; that is, its use
of computing or I/O resources. The stress levels used in this testing are considered to be at the
top of the range of a typical user’s needs.
VL-EPU-3311 Reference Manual
59
Thermal Considerations
Test Results
Test Scenario 1: Single Core EPU-3311-EAP + HDW-406 Heat Sink
At 90% CPU utilization this single core unit operates within the CPU’s core temperature safe
operating range all the way up to +85 ºC using only a heat sink.
Figure 30. EPU-3311-EAP Single Core Temperature Relative to Ambient Temperature
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60
Thermal Considerations
Test Scenario 2: Dual Core EPU-3311-EBP + HDW-406 Heat Sink, with/without HDW-411
fan
As shown in Figure 31, running the test scenario with just the heat sink, the core temperature is
slightly above 100 ºC at maximum ambient temperature. This will be less in most applications
that require less than 90% CPU utilization. Adding the fan provides an additional 5-6 ºC of
margin. For long-term reliability, ensure the CPU cores are predominately running with their
temperatures below 100 ºC.
Figure 31. EPU-3311-EBP Dual Core Temperature Relative to Ambient Temperature
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61
Thermal Considerations
Test Scenario 3: Quad Core EPU-3311-EDP + HDW-406 Heat Sink, with/without HDW-411
Fan
As shown below, the quad core version of the Osprey will typically require a heat sink + fan for
operation above 80 ºC, at >90% CPU utilization.
Figure 32. EPU-3311-EDP Quad Core Temperature Relative to Ambient Temperature
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62
Thermal Considerations
Test Scenario 4: Quad Core EPU-3311-EDP + HDW-408 Heat Pipe Block
This data is supplied as a reference point for custom heat pipe solutions.
Table 20: Heat Pipe Additional Configuration Details
HDW-408 Heat Pipe Block mounted to the EPU-3311 heat plate
with:


Passive Solution Configuration
Three 4 mm x 225 mm copper / water heat pipes
The EPU-3311 is inside an environmental chamber at the
noted temperatures
Thermal solution at far end of heat pipes:
Active Configuration


HDW-408 heat pipe block attached to a HDW-406 heat sink

Same as above with an added HDW-411 fan on the HDW-406
heat sink
The thermal solution is outside of the environmental chamber
in free-air at an ambient temperature of 25 ºC
Figure 33. EPU-3311-EDP Quad Core with Heat Pipe - Temperature Relative to Ambient
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63
Thermal Considerations
Installing VersaLogic Thermal Solutions
The following thermal solution accessories are available from VersaLogic:

VL-HDW-401 Thermal Compound Paste - used to mount the heat sink to the heat plate

VL-HDW-405 – Mounting Plate

VL-HDW-406 Passive Heat Sink – mounts to standard product.

VL-HDW-411 Fan Assembly – Cooling fan for HDW-406 passive heatsink. Operates at +12
V and includes an ATX-style connection

VL-HDW-408 Heat Pipe Block – mounts to heat plate
Hardware Assembly
There are two basic assembly methods:

Heat plate down (in relation to the enclosure)

Heat plate up
These assembly methods are shown in Figure 34 and Figure 35, respectively. An optional
mounting plate, VL-HDW-405, can be used with either method.
Heat Plate Down
Figure 34 (a representative image of a similar VersaLogic product) shows the assembly including
the mounting plate. Use this assembly method if you are attaching the Osprey to a larger thermal
solution such as a metal chassis/enclosure.
Figure 34. Hardware Assembly with Heat Plate Down
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64
Thermal Considerations
The recommended method is to attach the Osprey heat plate to the mounting plate (VL-HDW405), and attach the mounting plate to the enclosure.
A thermal interface compound must be applied to the heat plate to thermally bond it to the
mounting plate or other surface to which the Osprey is mounted. Spread the compound thinly
and evenly across the entire heat plate surface before mounting. The compound is supplied in
the VL-CKR-OSPREY cable kit or sold separately as part number VL-HDW-401.
Heat Plate Up
Use this assembly method if you are adding a heatsink to the standard Osprey heat plate. Figure
35 (a representative image of a similar VersaLogic product) shows the assembly including the
optional HDW-405 mounting plate and optional HDW-406 heatsink.
Figure 35. Hardware Assembly with Heat Plate Up
The recommended assembly method for this configuration is as follows:
1. Attach the heatsink to the Osprey heat plate.
2. Attach the baseboard to the mounting plate (VL-HDW-405) with standoffs.
3. Attach the mounting plate to the enclosure.
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65
Thermal Considerations
Installing the VL-HDW-406 Passive Heat Sink
1. Apply the Arctic Silver† Thermal Compound (VL-HDW-401)

Apply the thermal compound to the heat plate using the method described on the Arctic
Silver website - http://www.arcticsilver.com/
2. Position the passive heat sink

Using Figure 36 as a guide, align the six mounting holes of the heat sink with the heat
plate.
3. Secure the passive heat sink to the heat plate

Affix the passive heat sink to the heat plate using six M2.5 pan head screws.

Using a torque screwdriver, tighten the screws to 4.0 inch-pounds.
Figure 36. Installing the Passive Heat Sink
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66
Thermal Considerations
Installing the VL-HDW-411 Heat Sink Fan
1. Position the fan assembly

Using Figure 37 as a guide, align the mounting holes of the heat sink fan with the four
holes in the passive heat sink. Position the fan so that its power cable can easily reach its
mate – an ATX-style four-pin +12 V power connector (or equivalent).
2. Secure the fan to the heat sink

Affix the heat sink fan using four M3 pan head screws.

Using a torque screwdriver, tighten the screws to 4.0 inch-pounds.
3. Connect power to the fan

Connect the fan’s power cable to a four-pin ATX style +12 V IDE drive power
connector.
Figure 37. Installing the Heat Sink Fan
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67
Thermal Considerations
Installing the VL-HDW-408 Heat Pipe Block
1. Apply the Arctic Silver Thermal Compound (VL-HDW-401)

Apply the thermal compound to the heat plate using the method described on the Arctic
Silver website - http://www.arcticsilver.com/. The 4 mm heat pipes will also typically
have the thermal compound applied to where the pipes contact both the heat plate and the
block.
2. Position the heat pipe block

Using Figure 38 as a guide, align the six mounting holes of the heat pipe block with the
heat plate. (Figure 38 shows the heat pipe block installed.)
3. Secure the heat pipe block to the heat plate

Affix the heat pipe block to the heat plate using six M2.5-0.45 x 10mm, Phillips, pan
head screws.

Using a torque screwdriver, tighten the screws to 4.0 inch-pounds.
Figure 38. Installing the Heat Pipe Block
*** End of document ***
VL-EPU-3311 Reference Manual
68
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